diff --git a/src/xsd4/wix.xsd b/src/xsd4/wix.xsd
index e716705d..35072f43 100644
--- a/src/xsd4/wix.xsd
+++ b/src/xsd4/wix.xsd
@@ -25,6 +25,8 @@
         Module compiles into an msm file, PatchCreation compiles into a pcp file. The Fragment element
         is an atomic unit which ultimately links into either a Package, Module, or PatchCreation. The
         Fragment can either be completely included or excluded during linking.
+
+        Product is another name for Package and the two are used interchangeably. Hence the ProductName variable can be changed by setting the *name* attribute on the Package element.
       </xs:documentation>
     </xs:annotation>
     <xs:complexType>